Files
tbd-station-14/Content.Server/Vehicle/VehicleSystem.cs

269 lines
11 KiB
C#

using Content.Shared.Vehicle.Components;
using Content.Shared.Vehicle;
using Content.Shared.Buckle.Components;
using Content.Shared.Movement.Components;
using Content.Shared.Containers.ItemSlots;
using Content.Shared.Actions;
using Content.Shared.Audio;
using Content.Shared.Pulling.Components;
using Content.Server.Light.Components;
using Content.Server.Buckle.Components;
using Content.Server.Hands.Systems;
using Content.Shared.Tag;
using Content.Server.Mind.Components;
using Robust.Shared.Random;
using Robust.Shared.Containers;
using Robust.Shared.Player;
namespace Content.Server.Vehicle
{
public sealed class VehicleSystem : EntitySystem
{
[Dependency] private readonly HandVirtualItemSystem _virtualItemSystem = default!;
[Dependency] private readonly IRobustRandom _random = default!;
[Dependency] private readonly SharedActionsSystem _actionsSystem = default!;
[Dependency] private readonly SharedAmbientSoundSystem _ambientSound = default!;
[Dependency] private readonly TagSystem _tagSystem = default!;
[Dependency] private readonly ItemSlotsSystem _itemSlotsSystem = default!;
[Dependency] private readonly RiderSystem _riderSystem = default!;
public override void Initialize()
{
base.Initialize();
SubscribeLocalEvent<VehicleComponent, BuckleChangeEvent>(OnBuckleChange);
SubscribeLocalEvent<VehicleComponent, ComponentInit>(OnComponentInit);
SubscribeLocalEvent<VehicleComponent, MoveEvent>(OnMove);
SubscribeLocalEvent<VehicleComponent, EntInsertedIntoContainerMessage>(OnEntInserted);
SubscribeLocalEvent<VehicleComponent, EntRemovedFromContainerMessage>(OnEntRemoved);
}
/// <summary>
/// This just controls whether the wheels are turning.
/// </summary>
public override void Update(float frameTime)
{
foreach (var (vehicle, mover) in EntityQuery<VehicleComponent, SharedPlayerInputMoverComponent>())
{
if (mover.VelocityDir.sprinting == Vector2.Zero)
{
UpdateAutoAnimate(vehicle.Owner, false);
continue;
}
UpdateAutoAnimate(vehicle.Owner, true);
}
}
/// <summary>
/// Sets the initial appearance / sound, then stores the initial buckle offset and resets it.
/// </summary>
private void OnComponentInit(EntityUid uid, VehicleComponent component, ComponentInit args)
{
UpdateDrawDepth(uid, 2);
_ambientSound.SetAmbience(uid, false);
if (!TryComp<StrapComponent>(uid, out var strap))
return;
component.BaseBuckleOffset = strap.BuckleOffset;
strap.BuckleOffsetUnclamped = Vector2.Zero; //You're going to align these facing east, so...
}
/// <summary>
/// Give the user the rider component if they're buckling to the vehicle,
/// otherwise remove it.
/// </summary>
private void OnBuckleChange(EntityUid uid, VehicleComponent component, BuckleChangeEvent args)
{
// Send an event that our vehicle buckle changed
if (TryComp<MindComponent>(args.BuckledEntity, out var mind) && mind.Mind != null && mind.Mind.TryGetSession(out var session))
RaiseNetworkEvent(new BuckledToVehicleEvent(uid, args.BuckledEntity, args.Buckling), Filter.SinglePlayer(session));
if (args.Buckling)
{
// Add a virtual item to rider's hand, unbuckle if we can't.
if (!_virtualItemSystem.TrySpawnVirtualItemInHand(uid, args.BuckledEntity))
{
_riderSystem.UnbuckleFromVehicle(args.BuckledEntity);
return;
}
// Set up the rider and vehicle with each other
EnsureComp<SharedPlayerInputMoverComponent>(uid);
var rider = EnsureComp<RiderComponent>(args.BuckledEntity);
component.Rider = args.BuckledEntity;
rider.Vehicle = component;
component.HasRider = true;
// Handle pulling
RemComp<SharedPullableComponent>(args.BuckledEntity);
RemComp<SharedPullableComponent>(uid);
// Let this open doors if it has the key in it
if (component.HasKey)
{
_tagSystem.AddTag(uid, "DoorBumpOpener");
}
// Update appearance stuff, add actions
UpdateBuckleOffset(Transform(uid), component);
UpdateDrawDepth(uid, GetDrawDepth(Transform(uid), component.NorthOnly));
if (TryComp<ActionsComponent>(args.BuckledEntity, out var actions) && TryComp<UnpoweredFlashlightComponent>(uid, out var flashlight))
{
_actionsSystem.AddAction(args.BuckledEntity, flashlight.ToggleAction, uid, actions);
}
if (component.HornSound != null)
{
_actionsSystem.AddAction(args.BuckledEntity, component.HornAction, uid, actions);
}
_itemSlotsSystem.SetLock(uid, component.Name, true);
return;
}
// Clean up actions and virtual items
_actionsSystem.RemoveProvidedActions(args.BuckledEntity, uid);
_virtualItemSystem.DeleteInHandsMatching(args.BuckledEntity, uid);
// Go back to old pullable behavior
_tagSystem.RemoveTag(uid, "DoorBumpOpener");
EnsureComp<SharedPullableComponent>(args.BuckledEntity);
EnsureComp<SharedPullableComponent>(uid);
// Entity is no longer riding
RemComp<RiderComponent>(args.BuckledEntity);
// Reset component
component.HasRider = false;
component.Rider = null;
_itemSlotsSystem.SetLock(uid, component.Name, false);
}
/// <summary>
/// Every time the vehicle moves we update its visual and buckle positions.
/// Not the most beautiful thing but it works.
/// </summary>
private void OnMove(EntityUid uid, VehicleComponent component, ref MoveEvent args)
{
// This first check is just for safety
if (!HasComp<SharedPlayerInputMoverComponent>(uid))
{
UpdateAutoAnimate(uid, false);
return;
}
// The random check means the vehicle will stop after a few tiles without a key or without a rider
if ((!component.HasRider || !component.HasKey) && _random.Prob(0.015f))
{
RemComp<SharedPlayerInputMoverComponent>(uid);
UpdateAutoAnimate(uid, false);
}
UpdateBuckleOffset(args.Component, component);
UpdateDrawDepth(uid, GetDrawDepth(args.Component, component.NorthOnly));
}
/// <summary>
/// Handle adding keys to the ignition, give stuff the InVehicleComponent so it can't be picked
/// up by people not in the vehicle.
/// </summary>
private void OnEntInserted(EntityUid uid, VehicleComponent component, EntInsertedIntoContainerMessage args)
{
var inVehicle = AddComp<InVehicleComponent>(args.Entity);
inVehicle.Vehicle = component;
if (_tagSystem.HasTag(args.Entity, "VehicleKey"))
{
// Return if the slot is not the key slot
// That slot ID should be inherited from basevehicle in the .yml
if (args.Container.ID != "key_slot")
{
return;
}
// This lets the vehicle move
EnsureComp<SharedPlayerInputMoverComponent>(uid);
// This lets the vehicle open doors
if (component.HasRider)
_tagSystem.AddTag(uid, "DoorBumpOpener");
component.HasKey = true;
// Audiovisual feedback
_ambientSound.SetAmbience(uid, true);
}
}
/// <summary>
/// Turn off the engine when key is removed.
/// </summary>
private void OnEntRemoved(EntityUid uid, VehicleComponent component, EntRemovedFromContainerMessage args)
{
RemComp<InVehicleComponent>(args.Entity);
if (_tagSystem.HasTag(args.Entity, "VehicleKey"))
{
component.HasKey = false;
_ambientSound.SetAmbience(uid, false);
}
}
/// <summary>
/// Depending on which direction the vehicle is facing,
/// change its draw depth. Vehicles can choose between special drawdetph
/// when facing north or south. East and west are easy.
/// </summary>
private int GetDrawDepth(TransformComponent xform, bool northOnly)
{
if (northOnly)
{
return xform.LocalRotation.Degrees switch
{
< 135f => 5,
<= 225f => 2,
_ => 5
};
}
return xform.LocalRotation.Degrees switch
{
< 45f => 5,
<= 315f => 2,
_ => 5
};
}
/// <summary>
/// Change the buckle offset based on what direction the vehicle is facing and
/// teleport any buckled entities to it. This is the most crucial part of making
/// buckled vehicles work.
/// </summary>
private void UpdateBuckleOffset(TransformComponent xform, VehicleComponent component)
{
if (!TryComp<StrapComponent>(component.Owner, out var strap))
return;
strap.BuckleOffsetUnclamped = xform.LocalRotation.Degrees switch
{
< 45f => (0, component.SouthOverride),
<= 135f => component.BaseBuckleOffset,
< 225f => (0, component.NorthOverride),
<= 315f => (component.BaseBuckleOffset.X * -1, component.BaseBuckleOffset.Y),
_ => (0, component.SouthOverride)
};
foreach (var buckledEntity in strap.BuckledEntities)
{
var buckleXform = Transform(buckledEntity);
buckleXform.LocalPosition = strap.BuckleOffset;
}
}
/// <summary>
/// Set the draw depth for the sprite.
/// </summary>
private void UpdateDrawDepth(EntityUid uid, int drawDepth)
{
if (!TryComp<AppearanceComponent>(uid, out var appearance))
return;
appearance.SetData(VehicleVisuals.DrawDepth, drawDepth);
}
/// <summary>
/// Set whether the vehicle's base layer is animating or not.
/// </summary>
private void UpdateAutoAnimate(EntityUid uid, bool autoAnimate)
{
if (!TryComp<AppearanceComponent>(uid, out var appearance))
return;
appearance.SetData(VehicleVisuals.AutoAnimate, autoAnimate);
}
}
}